{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "748067870",
    "entityType": "User",
    "nonce": "0x609ba8f442a714870db162273d1b9908d4525b77aa324ccb6b4248b998b36ef0",
    "signature": "0x5d3e5cce4e98bfb4f8eaa081a4d47e7adf875378675827cdf564d134c520e4d06aa0abf04a1a998b876199160d62fe2b5e75fc591828a70d7a5525e5354b37bd1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}